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Pronunciation:  `invu'looshun

WordNet Dictionary
  1. [n]  the action of enfolding something
  2. [n]  the process of raising a quantity to some assigned power
  3. [n]  marked by elaborately complex detail
  4. [n]  a long and intricate and complicated grammatical construction
  5. [n]  reduction in size of an organ or part (as in the return of the uterus to normal size after childbirth)

INVOLUTION is a 10 letter word that starts with I.


 Synonyms: elaborateness, elaboration, enfolding, exponentiation, intricacy
 See Also: biological process, change of shape, complexity, complexness, construction, expression, grammatical construction, mathematical operation, mathematical process, operation, organic process



Webster's 1913 Dictionary
\In`vo*lu"tion\, n. [L. involutio: cf. F. involution.
See {Involve}.]
1. The act of involving or infolding.

2. The state of being entangled or involved; complication;

         All things are mixed, and causes blended, by mutual
         involutions.                          --Glanvill.

3. That in which anything is involved, folded, or wrapped;
   envelope. --Sir T. Browne.

4. (Gram.) The insertion of one or more clauses between the
   subject and the verb, in a way that involves or
   complicates the construction.

5. (Math.) The act or process of raising a quantity to any
   power assigned; the multiplication of a quantity into
   itself a given number of times; -- the reverse of

6. (Geom.) The relation which exists between three or more
   sets of points, a.a', b.b', c.c', so related to a point O
   on the line, that the product Oa.Oa' = Ob.Ob' = Oc.Oc' is
   constant. Sets of lines or surfaces possessing
   corresponding properties may be in involution.

7. (Med.) The return of an enlarged part or organ to its
   normal size, as of the uterus after pregnancy.

Biology Dictionary
 Definition: A rolling inwards of leaves.
Thesaurus Terms
 Related Terms: absorption, addition, ambages, anfractuosity, approximation, circuitousness, circumambages, circumbendibus, circumlocution, circumvolution, comedown, complexity, complexness, complication, convolution, crabbedness, crinkle, crinkling, debasement, decadence, decadency, declension, declination, decline, deformation, degeneracy, degenerateness, degeneration, degradation, demotion, depravation, depravedness, depreciation, derogation, descent, deterioration, devolution, differentiation, division, downtrend, downturn, downward mobility, downward trend, drop, dying, ebb, effeteness, embarrassment, engagement, enmeshment, entanglement, equation, evolution, extrapolation, fading, failing, failure, failure of nerve, fall, falling-off, flexuosity, flexuousness, implication, inclusion, integration, interpolation, intorsion, intricacy, intricateness, inversion, involvement, lapse, loss of tone, meander, meandering, multiplication, notation, perplexity, practice, proportion, ramification, reduction, regression, relation, retrocession, retrogradation, retrogression, rivulation, sinuation, sinuosity, sinuousness, slinkiness, slippage, slump, snakiness, subtlety, subtraction, tanglement, technicality, torsion, tortility, tortuosity, tortuousness, transformation, turning, twisting, undulation, wane, wave, waving, winding